[单选题]为了使配置私有IP的设备能够访问互联网,应采用的技术是()
                                                             正确答案 :A
                    
                      
                                                                                     NAT 
                                                                                                                                                                                                                
                    
                                     [单选题]交换机转发数据到目的地依靠()
                                                             正确答案 :B
                    
                      
                                                                                                                                         MAC地址表 
                                                                                                                                                            
                    
                                     [单选题]在启用IGRP协议时,所需要的参数是:()
                                                             正确答案 :C
                    
                      
                                                                                                                                                                                             自治系统号 
                                                                                                        
                    
                                     [单选题]IP地址为:192.168.50.70,掩码为:255.255.255.248,则该IP地址所在子网的子网号为()
                                                             正确答案 :B
                    
                      
                                                                                                                                         192.168.80.64 
                                                                                                                                                            
                    
                                     [单选题]配置路由器特权用户“加密密码”的命令是:()
                                                             正确答案 :C
                    
                      
                                                                                                                                                                                             enable secret 
                                                                                                        
                    
                                     [单选题]哪一个命令可以设置路由器特权用户的“明文密码”()
                                                             正确答案 :A
                    
                      
                                                                                     enable password 
                                                                                                                                                                                                                
                    
                                     [多选题]默认情况下,IGRP衡量路径好坏时,考虑的因素为()
                                                             正确答案 :AD
                    
                      
                                                                                     带宽 
                                                                                                                                                                                                                         延时 
                                                    
                    解析:AD
 
                                     [单选题]A new Ezonexam switch is installed into an existing LAN and a new VTP trunk is set up with an existing switch. Which VLANs will be allowed on this new trunk?
                                                             正确答案 :A
                    
                      
                                                                                     All defined VLANs are allowed on the trunk by default. 
                                                                                                                                                                                                                                                                    
                    解析:解析:Explanation: 
                                     [多选题]Which of the following are types of flow control? (Choose three)
                                                             正确答案 :ACD
                    
                      
                                                                                     Buffering 
                                                                                                                                                                     Windowing 
                                                                                                                 Congestion avoidance 
                                                                                                        
                    解析:解析:Explanation:Datatransmissionflowcontroloccursatlayer4withthehelpofbuffering,windowingandcongestionavoidance. 
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